A CTA train derailed near the Brown Line's Kimball station early this morning, forcing dozens of passengers to walk back to the platform but causing no injuries, according to the Chicago Fire Department.

Fire officials called a still-and-box response and an EMS Plan 1, bringing at least five ambulances to the scene. The ambulances were released from the scene shortly afterward when it became clear no was injured.

A burst of thunderstorm activity across the Chicago area in Sunday afternoon resulted in multiple injuries and a death at an event in west suburban Wood Dale, the collapse of a dome in northwest suburban Rosemont and the temporary evacuation of the music festival Lollapalooza in Grant Park downtown.